Mechanism for locking levers.



G.'C. JENSEN..

MECHANISM FOR LOCKING LEVERS.

APPLICATION FILED NOV. 20. 1911.

1,262,201 a Patented Apr. 9, 1918.

WITNESS? f6 5 ENTO A TTORNE YS.

- To all whom it may concern:

snonen c. miisnn, o1: onxnm,;omronnm.

orrronil if MECHANISM FOR IiOCmG- Be it known thatI, Gnonon JENSEN,

. a citizen of the United States, residing at Oakland, in the county of Alameda. and State of California, have invented certain new and useful Improvements in Mechan sm for Looking Levers, of which the following is a specification. (w

In gear shifting levers for motor driven vehicles the shiftable elements of some constructions are engageable by the lower end of the lever below its pivotal point, and are selectively engaged by lateral movement of the lever; movement in a plane at right angles to that of the selective plane of movement operating the shiftable elements to control the movement thereof.

This invention relates to a locking device for preventing the operation of the before described construction and accomplishes the locking result by providing a construction which is cheap to manufacture and which m" be installed at little cost.

he invention consists broadly in providing an axially rotatable lever locking bolt adapted when rotated to lie with a portion of its surface within a depression in the lower end of the lever, and actuated by the operation of a suitable plunger cooperating with which is a lock controlled mechanism,

preferred embodiment of my invention taken on line 11 of Fig.

Fig. 2 is a vertical sectional view taken on line 22 of Fig. 3, viewed in the direction of the arrows.

Fig. 3 is a top plan view.

Fig. 4 is a sectional view taken on line.

- upwardly through a sultable bore 18 in the 4.1 of Fig. 1.

In the drawings, wherein like characters of reference designate corresponding partsin the several views, 1 indicates a suitable tubular casing provided with an enlarged chamber 2 transversely of which are slldably mounted the horizontally disposed longitudinally movable shift rods 3 arranged in parallel spaced relation; Fixed to the rods 3 are the lever engaging blocks 4: pro

Specification of Letters Patent.

vided on their adjacent faces with suitable lever receiving recesses 5.

Extending vertically through the upper open end of the tubular casing 1 IS a lever 6 Patented Apr. 9, 1918.

Application filed November 20,1917. Serial No. 202,921. i i

A suitable securing member 10 passes through the lever and secures the same to the bolt 7, thus it will be observed that when the lever is moved or swung in a plane parallel to the longitudinal axis of the bolt 'Z, that the fulcrum for said lever is on the bolt 10, and when said lever is moved in a direction at right angles to the axis of rotation of the bolt, then the fulcrum point for said lever is at the point of fulcrum of the shaft 7. The lower end of the lever 6 passes downwardly between and extends below the blocks a, being received in the recesses 5 therein, which are of sufiicient depth to ac" commodate the full thickness of the lower end of the lever, which permits the lower end of the lever-being received in said recess during the selective movement thereof.

The lever is provided at its lower end with an arcuate depression or seat 11 within which is adapted to be received a portion of a lever locking bolt 12, transversely disposed beneath the fulcrum point of the lever and rotatably mounted in bearings 13 in the lower end of the casing 1.

lihe bolt 12 is disposed in parallel alinement with and below the shaft 7, and is provided with a cutout 14 adapted for rotation to register with the lower end of the lever 6 and when in register therewith permitting operative movement of the lever in either its selective or operative planes.

The locking bolt 12 is formed on its end with a series of teeth 15 cooperating with corresponding teeth 16 on the lower end of the vertically disposed, longitudinally slidable, operating plunger 17, which extends wall of the housing 1.

A coiled spring 19 surrounding the lower end of the plunger 17 normally maintains the same at the upper end of its vertical movement in the bore 18, which movement rotates the locking bolt 12 to present the cutout 15 to the lower end of the lever 8. To throw the bolt 12 into locking engagement with the lower end of the lever 6,

pressed position, as in Fig.- 2, the-same is automatically locked therein by any suitable .locking mechanism. The conventional form illustrated Consisting of a 'key controlled locking barrel. 20 within a casing-21 and havin" a cam portion 22 receivable in-a'recess 2 in a plunger locking bolt 24. The bolt 24 is forced outwardly by 'a. coiled spring 25 to cause the outer end 26 ofthe bolt to seat in a notch 27 in the sidewall of the plunger 17.

Thus, on the rotation-of the barrel 2 O by Y the controlling key therefor, the outer end 26 of the bolt 24 will be withdrawn from th notch 27 permitting the spring ,19 to aujtomatically raise the plunger and permit of the lever.

operative movement of the lever.

To prevent removal of the shaft 7 from its fulcrum point, the same is interlocked with the upper end of the plunger 17 by the body portion of said plunger passing through a groove therein, as in Figs. 2 and 3 of thedrawings. I A suitable spring member '28 having arms 29 extending one downwardly on each side of the lever 6 below its fulcrum, maintain the-lever in vertical position, and prevent the rattling of the same.

enga e the lower end of the lever with a suita le rotatable lever locking bolt, which. when in contact 'witli the lever prevents movement of the same, and which bolt is capable of retation to permit free movement Having thus described my invention,-wha't I claim as new and desire to protect by Letters Patent is 4 1. A mechanism for looking a lever fulcrumed intermediate of its length for swinging movement in two planes, comprising a rotatable bolt mounted below the end surface of the lever and intersecting the path of movement of the lower end of the lever,"

said bolt capable of movement to position 1ts peripheral surface into" contact with thelower end surface of said lever to lock the lever from movement in either of its planes.

-2. A mechanism for locking alever fulcrumed intermediate of its length for swinging movement in two planes, comprising a rotatable bolt intersecting the path of movement of the lower' end of .the lever and capable of rotation to throw its surface into contact with the lower end surface of said lever to lock the same from movement in either of. its planes, the surface of said bolt being cut or recessed to permit the free passage of the lower end surface of said lever thereover when said bolt is rotated to position said cut or recessed portion in register therewith.

3. A mechanism for looking a lever fulcrumed intermediate of its length for swinging movement in two planes, comprising a rotatable bolt mounted below the endsurface of the lever and intersecting therpath of movement of the lower end of the lever,

said bolt capable of movement to throw its peripheral surface into contact with the lower end surface of said lever to lock the lever from movement in either of its planes,

.a longitudinal movable plunger having inrotatesaid bolt to unlocked position on therelease of said locking mechanism. 7

4. A mechanism for locking a lever fulcrumed intermediate of its length on a supporting shaft and capable of pivotal movement in two planes at right angles to each other, comprising a rotatable bolt positioned parallel with said shaft and in a plane below the same and intersecting the lower 'endsurface of said lever when the same is in a vertical position, said bolt provided with a portion for registering with the lower end p surface of said lever to permit operative By my improved device, I am able to] end of the lever and capable of movement to position a portion of its peripheral surface to contact with the full lower end surface of said lever to lock the lever from movement 'in one of its planes, said lever provided with portions for extending one on either side of said locking bolt to lock the lever from movement in its other plane.

6. A look for levers including a tubular casing, a levenfulcrumed intermediate .of its length on a supporting shaft carried by said casing for swinging movement in two planes, comprising a rotatable bolt capable of movement to position its surface to contact with the lower end surface of the lever to lock the same from movement in either of its planes, an operating plunger connected with said bolt to rotate the same and prevent lineal movement thereof from its sup: porting casing, said plunger intersecting the lever supporting shaft to lock the same from lineal movement within its supporting casing, and lock controlled means for controlling the movement of said plunger.

7. A mechanism for locking a lever, comprising a tubular casing, a lever supporting shaft extending transversely thereof and mounting a lever capable of movement therewith in one plane and of movement inde- 1 30 pendently thereof in another 'plane, a lever locking bolt disposed within said casing and parallel spaced relative with said lever supporting shaft and capable of operation to lock the lever from movement, an operating plunger arranged at right angles to said shaft and bolt and intersecting the same to prevent lineal movement of either relative to its supporting casing, said plunger adapt- 10 ed for operation to control said locking bolt,

and lock controlled mechanism associated with said plunger.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE C. JENSEN.

Witnesses:

HARRY A. TOTTEN, D. B. RICHARDS. 

